This is the most reliable method for legacy systems:
: Real-time scanning holding files hostage. Fix : Uninstall third-party antivirus completely (disabling often insufficient for kernel updates). Reinstall after KB2533 is applied. windows update kb2533 64 bit
Microsoft has archived many direct download links for legacy updates. If it is not appearing in your standard Windows Update list, you can try these sources: KB2533623 - Microsoft Update Catalog This is the most reliable method for legacy
The .cab file can be extracted from the .msu using: windows update kb2533 64 bit